Can you find out the missing number in the grid?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

What number do you get when you multiply all of the numbers on a telephone's number pad?

Can you find out the number of the parking space in which the car is parked?

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

Be active and find the killer in the picture Riddle below.

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211